Remove Duplicate Lines
Remove duplicate lines from any list. Optionally sort alphabetically.
Options
Result
What the tool does
Remove Duplicate Lines cleans lists by dropping repeated lines. Optionally sort alphabetically to tidy exports, emails, or CSV columns.
How to use it
- Paste your list (one item per line).
- Remove duplicates.
- Optionally sort the cleaned list.
- Copy the result.
Supported formats
- Plain text lists (one entry per line)
Privacy & security
This tool runs entirely in your browser. Your data never leaves your device — nothing is uploaded to our servers.
FAQs
- Is matching case-sensitive?
- Duplicate detection follows the tool’s matching rules — identical lines are removed; slight spelling differences are kept.
- Does order stay the same?
- Typically the first occurrence is kept. Sorting is optional if you enable it.
- Is my list private?
- Yes. Processing stays in your browser.